h1 {
    color: #fff;
}
#box1{
    display: flex;
    backface-visibility: hidden;
    width: 100px;
    height: 100px;
    background-image: url("../images/1.jpg");
    background-repeat: no-repeat;
    background-size: 100% 100%;
}
#box2{
    width: 100px;
    height: 100px;
    background-image: url("../images/2.png");
    background-repeat: no-repeat;
    background-size: 100% 100%;
}
 
#box3{
    width: 100px;
    height: 100px;
    background-image: url("../images/3.png");
    background-repeat: no-repeat;
    background-size: 100% 100%;
}
  
  